Management of Natural Resources | Chapter Assessment | English | Grade 10

Choose which of the following natural resource is odd one out.

• Sun

• Forest

• Coal

• Petroleum

Answer explanation

Forest, coal and petroleum are likely to exhaust if these are not conserved. The Earth is obtaining energy of sun from a long time and will continue to do so for billions of years.

Which of the following pH range is most suitable for life of plants and animals living in water?

• 6.5 – 7.5

• 2.0 – 3.5

• 3.5 – 5.0

• 9.0 – 10.5

Answer explanation

6.5 – 7.5 is the pH range, most suitable for life of plants and animals living in water. Hence option 1 is correct answer

Tags

NGSS.MS-LS1-5

Which of the following option shows the 3 R's to conserve natural resources for long term use?

• recycle, regenerate, reuse

• reduce, regenerate, reuse

• reduce, reuse, redistribute

• reduce, recycle, reuse

Answer explanation

Reduce, recycle, reuse are 3 R's to conserve natural resources for long term use. Option 4 is correct answer

Choose the correct statement from the given statements. Statement 1: Biodiversity refers to the different species of flora and fauna present in an area. Statement 2: Biodiversity refers to only the flora of a given area Statement 3: Biodiversity is greater in a forest Statement 4: Biodiversity refers to the total number of individuals of a particular species living in an area

• Statement 1 and 2

• Statement 2 and 4

• Statement 1 and 3

• Statement 2 and 3

Answer explanation

Among all the given statements, statement 1 and 3 are correct hence option 3 is correct answer.

Tags

NGSS.MS-LS2-5

Khadins, Bundhis, Ahars and Kattas are ancient structures. Which of the following purpose they are used for?

• grain storage

• wood storage

• soil conservation

• water harvesting

Answer explanation

Khadins, Bundhis, Ahars and Katas are ancient structures used for rain water harvesting. Hence option 4 is correct answer

In India, to cultivate a single species of plant, the vast tracts of forests are cleared. Which of the following is promoted by this practice?

• Biodiversity in the area

• Monoculture in the area

• Growth of natural forest

• Preserves the natural ecosystem in the area

Answer explanation

In India, to cultivate a single species of plant, the vast tracts of forests are cleared. Monoculture in the area is promoted by this practice.

Tags

NGSS.MS-LS2-5

NGSS.MS-LS2-4

Choose odd one out.

• Throwing garbage in river

• Using excessive fertilizers and insecticides in agriculture

• Releasing the wastewater from industries into water bodies

• Using public transport instead of private vehicle.

Answer explanation

In option 1, 2, and 3 the activities are not environment friendly. But, the activity mentioned in option 4 is environment friendly. Hence, option 4 is odd one out.

Tags

NGSS.MS-ESS3-3

NGSS.MS-ESS3-4

Choose the option which dominates the Arabari forests of Bengal.

• Teak

• Sal

• Bamboo

• Mangroove

Answer explanation

Sal dominates the Arabari forests of Bengal. Hence option 2 is correct answer.

Choose correct statements for why it is important to make small check dams across the flooded gullies. Statement 1: It holds water for irrigation Statement 2: It holds water and prevents soil erosion Statement 3: It recharges groundwater Statement 4: It holds water permanently

• Only statement 1

• Statement 1 and 2

• Statement 1, 2 and 3

• All 4 statements

Answer explanation

Making of small check dams across the flooded gullies are important because as it hold water for irrigation, prevent soil erosion and recharge ground water. So statement 1,2 and 3 are correct hence option 3 is correct answer.

Tags

NGSS.MS-ESS2-4

Teacher asked Pooja to give a method which can be utilize to maintain the ground water level and can be performed by every individual family. Which of the following must be the answer of Pooja?

• Construction of dam

• Making of Canals

• Prohibit the use borewells

• Rain water harvesting

Answer explanation

Rain water harvesting is the only option which is possible to perform by a individual family. All other options are impossible to perform by a individual family. It is also the only option that maintains groundwater. Hence option 4 is correct answer.